滑轮和齿轮

Loading ad...

Age: 10
Level: 3
Language: Chinese (zh)
ID: 1633855
12/11/2021
Country code: MY
Country: Malaysia
School subject: 科学 (1061731)
Main content: 滑轮和齿轮的用处 (1615735)

看图进行配对( Matching the correct answer )

Other contents: Click to the correct answer

Loading ad...

滑轮和齿轮

Loading ad...